Refocusing capabilities in a miniaturized multi-channel multi-resolution imaging system using a tunable lens

2014 ◽  
Author(s):  
L. Smeesters ◽  
G. Y. Belay ◽  
H. Ottevaere ◽  
Y. Meuret ◽  
H. Thienpont
2021 ◽  
Vol 41 (2) ◽  
pp. 0208002
Author(s):  
李江勇 Li Jiangyong ◽  
冯位欣 Feng Weixin ◽  
刘飞 Liu Fei ◽  
魏雅喆 Wei Yazhe ◽  
邵晓鹏 Shao Xiaopeng

Author(s):  
Binming Liang ◽  
Xiao Huang ◽  
Jihong Zheng

Abstract Photonic crystal (PC) not only breaks through the diffraction limit of traditional lenses but also can realize super-resolution imaging. Improving the resolution is the key task of PC imaging. The main work of this paper is to use a graded-index Photonic crystal (GPC) flat lens to improve the image resolution. An air-hole type two-dimensional (2D) GPC structure based on silicon medium is proposed in this paper. Numerical simulations through RSoft reveal that when the medium in the imaging area is air, the full width at half maximum (FWHM) value of a single image reaches 0.362λ. According to the Rayleigh criterion, the images of two point sources 0.57λ apart can also be distinguished. In the imaging system composed of cedar oil and GPC flat lens, the FWHM value of a single image reaches 0.34λ. In addition, the images of multiple point sources 0.49λ apart can still be distinguished.


2019 ◽  
Vol 48 (3) ◽  
pp. 312003
Author(s):  
明名 MING Ming ◽  
陈涛 CHEN Tao ◽  
徐天爽 XU Tian-shuang

2016 ◽  
Vol 24 (11) ◽  
pp. 2644-2650
Author(s):  
吴雄雄 WU Xiong-xiong ◽  
王晓蕊 WANG Xiao-rui ◽  
袁影 YUAN Ying ◽  
张建磊 ZHANG Jian-lei

2006 ◽  
Vol 33 (6Part22) ◽  
pp. 2278-2278
Author(s):  
D Roa ◽  
R Smither ◽  
Y Shieh ◽  
K Nie ◽  
X Zhang ◽  
...  

2002 ◽  
Vol 10 (1) ◽  
pp. 65
Author(s):  
Scott Teare ◽  
Sergio Restaino ◽  
Don Payne

2004 ◽  
Author(s):  
Xiaoshi Zhang ◽  
Daisy Raymondson ◽  
Arvinder S. Sandhu ◽  
Sterling Backus ◽  
Yanwei Liu ◽  
...  

2014 ◽  
Author(s):  
L. Smeesters ◽  
G. Y. Belay ◽  
H. Ottevaere ◽  
Y. Meuret ◽  
Michael Vervaeke ◽  
...  

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